Perhaps you should try some spelling variations:
"dung nhung cong snippets" » "dung chung cong snippets", "dung nhan cong snippets", "dung trung cong snippets", "dung dung cong snippets", "dung thong cong snippets", "dung hang cong snippets"
"dang rate code snippets" » "dang vat code snippets", "dang hat code snippets", "dang mat code snippets", "dang rate core snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dang rate code snippets") or ("dung nhung cong snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang rate code snippets") OR ("dung nhung cong snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang rate code snippets ) or ( dung nhung cong snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang rate code snippets") or ("dung nhung cong snippets"))) or ("locating bug code snippets"))*.